Glossary Term:


radiofrequency ablation


<b>ray</b>-dee-oh-<b>free</b>-kwin-see uh-<b>blay</b>-shun


also called RFA. Treatment that uses high-energy radio waves to heat and destroy abnormal tissues. A thin, needle-like probe is guided into the tumor by ultrasound or computed tomography (CT) scan. The probe releases a high-frequency current that heats and kills cancer cells. RFA is sometimes used to treat tumors in the liver, and is being studied for use in other areas of the body. See also computed tomography scan, ultrasound.